Steam-heated hot-water radiator



Nov. 20 $923 S. DEUTSCH STEAM HEATED HOT WATER RADIATOR Filed Aug}, 1921f \l I 3 Sheets-Sheet l Nov. 20, 1923 11,474,765

5. DEUTSCH STEAM HEATED HOT WATER RADIATOR Filed Aug. 9. 1921 3.Sheets-Shoot 2 Nov. 20, 1923..

s. DEUTSCH STEAM HEATED HOT WATER RADIATOR Filed Aug. 5, 8 smote-shoots31w who; zfu z u QMLMJQ Patented Nov. 2%, 1923:.

SIEGFRIED DEUTSGH, OF VIENNA, AUSTRIA.

STEAM-HEATED HOT- JVA'I'ER RADIATOR.

Application filed August 9, 1921. Serial No. 490,847.

To all whom it may concern:

Be it known that I, Srnornino Dnurson,

mechanical engineer, residing at Vienna,

State of Austria, have invented certain new and useful Improvements inSteamlleated Hot-Water Radiators; and I do hereby declare the followingto be a full. clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to steam-heated hot water radiators of the type, inwhich a system of tubes, open at the bottom, is arranged in a heatingunit in communication with the circulating units of the radiator, towhich system of tubes thc steam is admitted against the pressure exertedby a watercolumn present in the said heating unit and produced by anoverflow arrangement.

The object of this invention is to provide an improved steam-heated hotwater radiator of theabove type, and the invention substantiallyconsists in the provision of a communication or bypass conduit leadingfrom the steam admission chamber into the removal pipe for the water otcondensation, the mouth of which conduit, located in the steam admissionzone, is situated above't-he maximum high water level. In this bypassconduit a condenser, for instanoe of the coil type, may be interposed.

The top. preferably nozzleshaped orifice oi the bypass conduit is ofsuch dimensions depending unou'the maximum steam pres sure employed, asto ensure that when starting to heat the radiators. the air present inthe same can easily escape, Whereas the steam can escape only in smallquantities through the aforesaid bypass conduit. the said steam beingmoreover condensed in the coil.

One formvof carrying my invention into etfectis shown by way of examplein the accompanying drawings. in which- Fig. 1 is a section in avertical plane through one form of the heating unit-0t a steam heatedhot water radiator constructed in accordance with my invention,

Fig. 2 is a side elevation, partly in section, showing the entirearrangement-0t the radiator,

Fig. 3 is a plan thereof, and V Fig. 4 is a section'in a vertical planethrough the upper part of the heating unit taken on line A of Fig. 1;

In carrying the invention into effect as shown in the drawings, theheating unit 1, of the steam heated hot water radiator communicates withthe circulating units 4;, through upper and lower nipple communicationapertures 2 and. 3, and forms the terminal unit of the whole system. Asis usual in the type of radiators to which my invention relates, adouble tube system reaching down into the coldest part of the water isarranged in the heating unit. Each of these double tubes consists of aninner tube 5, and an outer tube 6, arranged at some distance from theinner tube. Between the two tubes an annular space is formed, which isopen at the bottom and closed at the top, where it communicates with thesteam supply.

The steam supplied through a pipe 8, enters a distributing chamber 9..and then flows into the annular space 7 through the branches IO-and 11.The supply of steam through the pipe 8, isregulated by a thermostaticdevice consisting of an expansion member 12, which, in its turn, iscomposed of a series of expansible units. This thermostat 12 is enclosedin a casing 13, attached steam tight to the front of the heating unit ofthe radiator, the said thermostat being placed at the lowest point ofthe heating unit 1, that is to say, it is so arranged that it isinfluenced by the coldest circulation water and is easily accessible,The thermostat acts upon a valve 14, regulating the steam supply in theusual manner.

From the preceding paragraph it should be evident that the steam entersthe lower part of the radiator. passes through the valve 145, and up thevertical section of pipe 8. The steam then passes into the heating unit,and into the chamber 9 as best shown in Fig, 4, which shows the pipe 8leading into this chamber 9.

In the interior of the heating unit there is arranged an overflowdevice, which in the present case consists of a tube 15 and is connectedto the pipe 16 serving for removing the water of condensation, as shownin Figures 1 and 3.

Before starting. the Whole radiator and tube system are filled withwater. As soon as steam enters the heating unit 1, pressure will beexerted against the column of water presentin the heating unit and thusforce the water out of the annular spaces 7 of the double tube system.At the commencement of the admission of steam, or with a. very smallquantity of steam, the, upper portion of the inner tube 5 is heated. sothat the water, contained therein, rises, causing cold er water at thebottom to follow, thus start in I a circulation of the water.

%y one adjustment, the steam admission pressure is so determined by aregulating member 17, that the water filling the interior of the doubletube system 5 and 6, is displaced into the proximity of the bottom edge,so that the steam cannot be admitted directly into the water to beheated. Since, on starting, the air filling the steam distributionsystem would reach the double tube system, the latter would thus bewholly or partly filled with air and thus the object aimedat, viz, areliable heating, would not be obtained. For this reason therefore I;provide a specially arranged pipe connection 18 between the steamadmission or distribrltion chamber 9, above the water level determinedby the overflow arrangement and: the pipe 16 for removing the water 01'condensation.

The upper orifice ot the communication pipe 18, forming a bypass,comprises a: nozzle-shaped inserted piece 19, which projects into theupper space of the distributing chamber 9. In the illustrated examplethis upper space is formed by a partition 20 into an A-shaped pipe, onelimb 21 of which. communicates with the steam admission pipe 8, and theother limb 22 communicates with the lower portion of the distributingchamber 9, the inserted piece 19, being located at the apex of the twolimbs 21 and 22 (Fig. 4.).

The distributing chamber 9 is closed by a screw cap 23, and the cover 24closing the heating unit is held down by screws 25 screwed into the cap23. The orifice 19 ot the bypass pipe 18 is of such dimensions,depending upon the maximum steam pres sure employed that on starting theheating of the radiator, the air may easily escape, whereas the steamcan flow through the bypasspipe only in a definite and very smallquantity. It is preferred to form this by pass pipe, either outside. or.as shown, within the water, into a coil 26, in which the steam iscondensed on its way through the bypass conduit 18. i

With an increased supply of steam the water is forced out of the heatingtube system and the heating surface is increased. The water ofcondensation torn'red during the transference of heat from the steam tothe heating tube system, enters the liquid with which: the heatingapparatus is filled and thus forms a part of the circulation liquid.Likewise, the steam entering the coil 26 transmits its heat to thesurrounding water, so that there are no'iosses of steam.

Another object of the communication con- H d'uit 18 between the steamadmission chamber and the pipe for the removal of the water ofcondensationis to prevent an emptying by suction, of the heatingapparatus when a vacuum is formed in the steam supply pipe. Furthermoreeven at a pressure which is scarcely above zero. a. transmission ofsteam through the pipe 18 to the pipe for the removal of the water ofcondensation will take place accompanied by a simultaneous condensation.Thus the liquid with which the radiator is filled will begin to beheated at a period, when such a heating, owing to the very low pressure,cannot be effected by ver tical tubes which are in direct communica tionwith the charging liquid. The upward drift or convection force necessaryfor effecting the circulation in the heating pipes could only beproduced with increased pressure, it such a bypass pipe were notprovided; another advantage of which consists in the fact that with avery low pressure, and consequently with a very low consumption of heat,the liquid with which the radiator is V filled may be kept hot.

The details of construction of the improved radiator and heating unitmay be modified in many ways, without departing from the scope of myinvention.

I claim:

1. In a heating device of the type described, the combination of aheating unit adapted to be filled with water, a steam tube system openat the bottom and arranged within said heating unit, an overflow pipeleading upward from the bottom of said unit, a pipe for the removal ofthe water of condensation, and a lay-pass conduit forming a connectionbetween the top portion of the steam tube system and the pipe for theremoval of the water of condensation. i

2. In a heating device of the type described. the combination of'aheating unit adapted to be filled with water, a steam tube system openat the bottom and arranged within said heating unit, an overflow unitleading upward from the bottom of said unit, a pipe for the removal ofthe water of condensation, a by-pass conduit forming a connectionbetween the top portion of the steam tube system and a pipe for theremoval of the water of condensation, and a device Fer condensing bysurface action steam flowing through the by-passconduit.

In a heating device of the type described. the combination of a heatingunit.

adapted to be filled with water, a steam tube system open at the bottomand arranged within said heating unit, an overflow tube leading upwardfrom the bottom of said heating unit, a pipe forthe removal of the waterof condensation, and a loy-pass conduit forming a connection betweenthetop portion of the steam tube system and the pipe for the removal ofthe water of condensation, the end of the lay-pass conduit lying withinthe top portion of the steam tube system being provided with arestricted orifice.

i, In a heating device of the type described, the combination of aheating unit adapted to be filled with water, a steam tube system openat the bottom and arranged I vithin said heating unit, an overflow pipeleading upward from the bottom of said heating unit, a pipe-tor theremoval of the water oi condensation, a bypass conduit forming aconnection between the top portion of the steam tube system and the pipefor the removal of the water of condensation, and a device forcondensing by surface action steam flowing through the by-pass conduitthe end of the bypass conduit lying within the top portion of the steamtube system being provided with a restricted orifice.

In a heating device of the type described, the combination of a heatingunit adapted to be filled with water, a steam tube systemopen at thebottom and arranged within said heating unit, an overflow pipe leadingupward from the bottom of said heating unit, a pipe for the removal ofthe water of condensation, a by-pass conduit forming a connectionbetween the top portion or" the steam tube system and the pipe for theremoval of the water of condensation. and a device for condensing steamflowing through said by-pass conduit, said condensing devicebeingconnected to the pipe for the removal of the water of condensation, theend of the bypass conduit lying within the top portion of the steam tubesystem being provided with a restricted orifice.

6. In a heating device of? the type described, the combination of aheating unit adapted to be filled with water, a steam tube system openat the bottom and arranged within said heating unit, an overflow tubeleading upward from the bottom of said heating unit, a pipe for theremoval of the water of condensation, a by-pass' conduit forming aconnection between the top por- 'tion. of the steam tube system and thepipe "for the removal of the water of condensation, and hot waterradiator elements connected to the upper and lower portions of theheating unit.

7. In a heating device of the type de scribed. the combination of aheating unit adapted to be filled with water, a steam tube system openat the bottom and arranged within said heating unit, an overflow unitleading upward from the bottom of said unit, a pipe for the removal ofthe water of condensation, a bypass conduit forming a connection betweenthe top portion of the steam tube system and a pipe for the removal ofthe water of condensation, a device tor condensing by surface actionsteam flowing through the bypass conduit, and hot water radiatorelements connected to the upper and lower portions of the heating unit.

8. In a heating device of the type described, the combination of aheating unit adapted to be filled with water, a steam tube systemopening at the bottom and arranged within said heating unit, an overflowtube leading upward from the bottom of said heating unit, a pipe for theremoval of the water of condensation, and a by-pass conduit forming aconnection between the top portion of the steam tube system and the pipefor the removal of the water of condensation. the end of the bypassconduit lying vithin the top portion of the steam tube system beingprovided with a restricted orifice, and hot water radiator elementsconnected to the upper and lower portions of the heating unit.

9. In a heating device of the type described, the combination of aheating unit adapted to be filled with water, a steam tube system openat the bottom and arranged within said heating unit, an overflow pipeleading upward from the bottom of said heating unit, a pipe for theremoval of the water of condensation, a by-pass conduit forming aconnection between the top portion of the steam tube system and the pipefor the removal of the water of condensation, and a device forcondensing by surface action steam flowing through the bypass conduit,the end of the by-pass conduit lying within the top portion of the steamtube system being provided with a restricted orifice, and hot waterradiator elements connected to the upper and lower portions of theheating unit.

10. In a heating device of the type described, the combination of aheating unit adapted to be filled with water, a steam tube system openat the bottom and arranged within said heating unit. an overflow pipeleading upward from the bottom of said heating unit, a pipe for theremoval of the water of condensation, a bypass conduit forming aconnection between the top portion of the steam tube system and the pipefor the removal of the water of condensa tion, and a device forcondensing steam flowing through said by-pass conduit, said condensingdevice being connected to the pipe for the removal of the water ofcondensation, the end of the by-pass conduit lying within the topportion of the steam tube system being provided with a restrictedorifice, and hot water radiator elements connected to the lower andupper portions of the heating unit.

In testimony whereof I aflix my signature.

SIEGFRIED DEUTSCH. VVit-nesses Srncrnrnn NEUTRA, YOHANN LUCY.

